package com.zsrd.system.aspect;


import cn.hutool.core.date.DateTime;
import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSON;

import com.zsrd.auth.core.UserInfoUtil;
import com.zsrd.system.aspect.enums.BusinessStatus;
import com.zsrd.system.domain.SysOperLog;
import com.zsrd.system.service.SysOperLogService;
import com.zsrd.system.utils.IpUtils;
import com.zsrd.system.utils.ServletUtils;
import com.zsrd.system.utils.StringUtils;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.validation.BindingResult;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.HandlerMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;


@Aspect
@Component
@Slf4j
public class SystemLogAspect {
    private static Logger logger = LoggerFactory.getLogger(SystemLogAspect.class);
    /**
     * 操作数据库
     */

    @Autowired
    private SysOperLogService sysOperLogService;

    /*切面*/
    @AfterReturning(pointcut = "@annotation(controllerLog)", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, SystemControllerLog controllerLog, Object jsonResult) {
        handleLog(joinPoint, controllerLog, null, jsonResult);
    }


    /*切面*/
    @AfterThrowing(value = "@annotation(controllerLog)", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint, SystemControllerLog controllerLog, Exception e) {
        handleLog(joinPoint, controllerLog, e, null);
    }

    private void handleLog(final JoinPoint joinPoint, SystemControllerLog controllerLog, final Exception e, Object jsonResult) {
        try {
            // 获取用户信息
            Map<String, Object> userinfo = UserInfoUtil.userinfo();
            String username = String.valueOf(userinfo.get("username"));
            // 数据库日志
            SysOperLog sysOperLog = new SysOperLog();
            sysOperLog.setStatus(BusinessStatus.SUCCESS.ordinal());
            // 请求的地址
            String ip = IpUtils.getIpAddr(ServletUtils.getRequest());
            sysOperLog.setOperIp(ip);
            sysOperLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
            if (StrUtil.isNotEmpty(username)) {
                sysOperLog.setOperName(username);
            }
            /**
             *  这里校验是否请求异常如果不为空则该请求异常
             *  e是handleLog方法入参异常Exception
             * */
            if (e != null) {
                sysOperLog.setStatus(BusinessStatus.FAIL.ordinal());
                sysOperLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000));
            }
            // 设置方法名称
            String className = joinPoint.getTarget().getClass().getName();
            String methodName = joinPoint.getSignature().getName();
            sysOperLog.setMethod(className + "." + methodName + "()");
            // 设置请求方式
            sysOperLog.setRequestMethod(ServletUtils.getRequest().getMethod());
            // 处理设置注解上的参数
            getControllerMethodDescription(joinPoint, controllerLog, sysOperLog, jsonResult);
            // 保存数据库
            sysOperLog.setOperTime(DateTime.now());
            sysOperLogService.getBaseMapper().insert(sysOperLog);
        }catch (Exception exp){
            // 记录本地异常日志
            log.error("==前置通知异常==");
            log.error("异常信息:{}",exp.getMessage());
            exp.printStackTrace();
        }
    }

    /**
     * 获取注解中对方法的描述信息 用于Controller层注解
     *
     * @param log     日志
     * @param operLog 操作日志
     * @throws Exception
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, SystemControllerLog log, SysOperLog operLog, Object jsonResult) throws Exception {
        // 设置action动作
        operLog.setBusinessType(log.businessType().ordinal());
        // 设置标题
        operLog.setTitle(log.title());
        // 设置操作人类别
        operLog.setOperatorType(log.operatorType().ordinal());
        // 模块所属功能
        operLog.setFunctionType(log.funcType().name());
        // 是否需要保存request，参数和值
        if (log.isSaveRequestData()) {
            // 获取参数的信息，传入到数据库中。
            setRequestValue(joinPoint, operLog);
        }
        // 是否需要保存response，参数和值
        if (log.isSaveResponseData() && StringUtils.isNotNull(jsonResult)) {
            operLog.setJsonResult(StringUtils.substring(JSON.toJSONString(jsonResult), 0, 2000));
        }
    }

    /**
     * 获取请求的参数，放到log中
     *
     * @param operLog 操作日志
     * @throws Exception 异常
     */
    private void setRequestValue(JoinPoint joinPoint, SysOperLog operLog) throws Exception {
        String requestMethod = operLog.getRequestMethod();
        if (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod)) {
            String params = argsArrayToString(joinPoint.getArgs());
            operLog.setOperParam(StringUtils.substring(params, 0, 2000));
        } else {
            Map<?, ?> paramsMap = (Map<?, ?>) ServletUtils.getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            operLog.setOperParam(StringUtils.substring(paramsMap.toString(), 0, 2000));
        }
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(Object[] paramsArray) {
        String params = "";
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (StringUtils.isNotNull(o) && !isFilterObject(o)) {
                    try {
                        Object jsonObj = JSON.toJSON(o);
                        params += jsonObj.toString() + " ";
                    } catch (Exception e) {
                    }
                }
            }
        }
        return params.trim();
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }

}

